Volcano: Rosie and Julian explore a simmering volcano park in Hawaii. They use a special thermometer to take a volcano's temperature and go for a helicopter ride to look down into its crater. Submarine: Rose and Julian jump into some Hawaiian fun by going snorkeling at the beach; then it's off to the aquarium to meet octopuses and sharks. They end their day with an underwater adventure on a mini-submarine tour of the ocean depths! Surfing: Rosie and Julian journey the land of hula dancing and surfing -- Hawaii! They learn to surf, make lei necklaces and then put on grass skirts for a hula dance with local kids.

Segments: 1. Volcano 2. Submarine 3. Surfing.